These silicone cup lids are designed to fit various mugs, drink cups, glass cups, and coffee cups. They provide an airtight suction seal that prevents dust from entering, keeping your beverages clean and fresh.Specification:Color: Pink/Blue; Material: Silicone; Total Size: 30 x 100mm / 1.18 x 3.94 inch(D*H); Pack of 4Pcs Silicone Cup LidsAdvantage:Made from silicone material that ensures durability, flexibility, and long-lasting performance. They are resistant to wear, tear, and deformation, making them a reliable choice for daily use.Instruction:Fit securely on all smooth-rimmed cups, including cups, mugs, and glasses, Simply place the lid on top of your cup, and press it down firmly to create a secure seal. The flexible silicone material allows for easy installation and removal while maintaining a tight fit.NOTE: These cup lids can withstand a wide temperature range from -40°F to 480°F. They are suitable for use in microwaves and refrigerators, offering convenient versatility